Zee-Drive Ltd. is a computer manufacturer. One of the items they make is monitors. Zee-Drive has the opportunity to purchase 20,000 monitors from an outside supplier for $210 per unit. One of the company's cost-accounting interns prepared the following schedule of Zee-Drive's cost to produce 20,000 monitors:

	Total cost of producing 20,000 monitors		Unit cost
Direct materials	$	2,400,000	$	120
Direct labor		1,380,000		69
Variable factory overhead		660,000		33
Fixed manufacturing overhead		500,000		25
Fixed non-manufacturing overhead		780,000		39
	$	5,720,000	$	286

You are asked to look over the intern's estimate before the information is shared with members of management who will decide to continue to make the monitors or buy them. The company's controller believes that the estimate may be incorrect because it includes costs that are not relevant. If Zee-Drive buys the monitors, the direct labor force currently employed in producing the monitors will be terminated and there would be no termination costs incurred. There are no materials on hand and no commitments to suppliers to purchase materials, so all materials would need to be purchased to make the monitors. Variable overheads are avoidable if monitors are bought. Fixed manufacturing overhead costs would be reduced by $57,000, but non-manufacturing costs would remain the same if monitors are bought.

Fill in the differential analysis.

Make or Buy Decisions Differential Analysis Report
Purchase price of 20,000 monitors		$
Differential cost to make:
Direct materials	$
Direct labor	$
Overhead	$	$
Differential income (loss) from making monitors		$

Please show me an example of my problem with an explanation as to how and what determines my answers. thank you!!!